Comments for Perspx

Comment on Making Cocoa list views really fast by Perspx

Perspx — Sat, 26 Jun 2010 09:14:03 +0000

@Michael: Perhaps; although NSScrollView lets you set custom horizontal and vertical scrollers through public methods.

My guess would be that it does something interesting in -setBackgroundABColor: or something with scrolling as -contentViewBoundsDidChangeNotification: is implemented. It also implements -scrollToRect:animated: and -scrollToPoint:animated: which are custom (presumably convenience) methods.

Comment on Making Cocoa list views really fast by Michael Villar

Michael Villar — Fri, 25 Jun 2010 15:10:11 +0000

FYI : I think the ABScrollView exists because of the custom NSScroller

Comment on Making Cocoa list views really fast by Perspx

Perspx — Tue, 01 Jun 2010 21:45:01 +0000

@James: That would make a lot of sense – as you can see the class-dumped ABTableView and ABTableViewCell classes are very similar to UITableView and Cell; FastTableView and Cell are pretty similar but look less cloned.

Comment on Making Cocoa list views really fast by James

James — Tue, 01 Jun 2010 11:29:56 +0000

From what I understand, and have heard from colleagues is that Loren Brichter used to work at Apple and worked on UIKit. I imagine he’s just used what he knows from the UITableView and UITableViewCell implementations and reimplemented them for AppKit.

Comment on Making Cocoa list views really fast by Brian Dunagan

Brian Dunagan — Fri, 21 May 2010 04:23:26 +0000

Very interesting! Tweetie probably uses that optimization combined with CoreGraphics pre-blending to achieve such smooth scrolling: http://blog.atebits.com/2008/12/fast-scrolling-in-tweetie-with-uitableview/.

Comment on Application Demos by Perspx

Perspx — Sun, 14 Mar 2010 16:07:31 +0000

Yes I see your point and I imagine they can sometimes be useful; a good example of doing it well is with the free version of Tweetie; if you go into the preferences and uncheck the “Show ads” checkbox it prompts you to purchase the full version (which removes them) in a way that isn’t irritating and can easily dismissed if you want to continue using it for free.

Although of course it is a fine balance between not being too intrusive but also making sure that people who are genuinely interested and have a use for the software actually purchase it.

Comment on Application Demos by ssp

ssp — Sun, 14 Mar 2010 13:02:07 +0000

Hehe, I remember seeing that FileMaker page when wanting to see how the app developed in the past decade. And it instantly convinced me to stick with the ancient FM 6 I still have sitting around – or go and download a demo + s/n from Bit Torrent which would seem more convenient.

I am not so sure about nagging. While I am annoyed by it and consider nagging bad taste, I also know that I just tend to forget to buy stuff which I’m OK to pay for unless it reminds me in a sufficiently clear and frequent way. So how can people push me to do the right thing without looking bad? I think if those reminders are well done and provide a straightforward (one click?) way to buying the app with instant gratification, they can be quite useful.

Comment on Application Demos by Zettt

Zettt — Sat, 13 Mar 2010 11:19:56 +0000

Re point 5: In my experience a “nagging popup” will make me even more likely turn away from an application *even though* the application handles the job better than another one. But simply the fact the app annoys me while testing it, makes me search for alternatives.

Comment on NSConference 2010: Mac Developer Conference (Day 1) by cSquirrel – NSConference 2010: Money well spent

cSquirrel – NSConference 2010: Money well spent — Sun, 14 Feb 2010 18:05:38 +0000

[...] Rozanski (@perspx) describes workshop, day 1 and day [...]

Comment on NSConference 2010: The World According to Gemmell by cSquirrel – NSConference 2010: Money well spent

cSquirrel – NSConference 2010: Money well spent — Thu, 11 Feb 2010 00:23:13 +0000

[...] Rozanski (@perspx) describes workshop, day 1 and day [...]